{"product_id":"allen-bradley-140-cmn-6300-140m-series-63a-motor-protection-circuit-breaker","title":"Allen-Bradley 140-CMN-6300 140M Series 63A Motor Protection Circuit Breaker","description":"\u003ch2\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e140-CMN-6300\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a versatile Motor Protection Circuit Breaker (MPCB) within the Allen-Bradley 140M line. This device integrates multiple control functions—including manual switching, thermal overload protection, and magnetic short-circuit protection—into a single modular unit.\u003c\/p\u003e\n\u003cp\u003eEngineered for motor branch circuit integrity, it supports a wide current range with a precision adjustable trip setting from 40A to 63A. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e140-CMN-6300\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis built for high-demand industrial environments, offering high breaking capacities across various voltage levels and a robust mechanical lifespan of 30,000 operations.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eDetailed Technical Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e140-CMN-6300\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e: Allen-Bradley \/ Rockwell Automation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRated Operational Current (Ie)\u003c\/strong\u003e: 63 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Trip Adjustment Range\u003c\/strong\u003e: 40 A to 63 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMagnetic Release Current\u003c\/strong\u003e: 890 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e: 230V AC to 690V AC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRated Frequency\u003c\/strong\u003e: 40 to 60 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUltimate Short Circuit Breaking Capacity (Icu)\u003c\/strong\u003e: 50 kA at 230\/240V AC; 20 kA at 400\/415V AC; 10 kA at 500V AC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTrip Class Performance\u003c\/strong\u003e: Class 10\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Operations\u003c\/strong\u003e: 30,000 cycles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Operations\u003c\/strong\u003e: 5,000 cycles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTerminal Torque Requirements\u003c\/strong\u003e: 6–10 Nm (55–90 lb-in)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eApplicable Wire Size\u003c\/strong\u003e: #8-14 AWG Copper wire\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWire Insulation Rating\u003c\/strong\u003e: 75°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e: 1.96 kg (4.31 lbs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eIndustrial Applications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e140-CMN-6300\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis primarily deployed as a manual motor starter or as the primary protective element in multi-component motor branch circuits. It is frequently found in control panels for heavy-duty pumps, ventilation fans, and conveyor systems where localized motor disconnection and overcurrent protection are required.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eTechnical FAQ\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the 140-CMN-6300 handle high-frequency switching?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is designed for a maximum switching frequency of 20 operations per hour to ensure the thermal elements accurately track motor temperature.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the magnetic trip setting adjustable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe thermal (overload) trip is adjustable between 40-63A, but the magnetic (short-circuit) trip is a fixed standard setting of 890A for rapid fault response.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53053510156472,"sku":"140-CMN-6300","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/140CMN6300.jpg?v=1773908936","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-140-cmn-6300-140m-series-63a-motor-protection-circuit-breaker","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}